Here the effects of flower distribution (nectar), aphid abundance (honeydew quantity) and honeydew quality on parasitoid life history parameters were explored using a spatially explicit, individual-based simulation model.
Abundance and quantity of diet source for sika deer played crucial role in shaping the composition and structure of gut microbiota.
The choice of wood ash, rice bran and poultry manure as source of organic materials in the research study was because of their availability and abundance in large quantities from the experimental location and its surrounding communities where majority of the farmers are predominantly cassava, rice growers with associated processing mills and poultry producers.
Our results showed increasing differences in these attributes between natural and managed stands with increasing silviculture intensity: the diameter structure became more homogenized, light demanding species richness and abundance increased and the quantity and the quality of snags decreased.
Theoretical population ecology during most of the 20th Century has been developed around an abundance (i.e. quantity) variable involving numbers of individuals, or number or biomass densities.
This suggests that the relation between nematode abundance and biomass, and quantity, quality and bioavailability of the present food is stronger when hydrodynamic disturbance is greater, providing that the disturbance is not of such proportions that it is able to preclude the establishment of meiobenthic communities.
Here we propose that the simplest next step in capturing many of these carry-over effects, without making the details too explicit is to augment the standard "quantity" or abundance variable formulation by adding a second variable to provide a measure of the current "average quality" of each of the populations in a trophic network or food web.
Similarly, different grass species did not affect soil mite abundance indicating that resource quantity may be of greater importance than resource quality [32].
We also provide (i) an independent proteomic analysis confirming the presence of S-LAPs in sperm, (ii) a biochemical analysis of S-LAPs quantity and abundance in sperm, (iii) data indicating that S-LAPs are expressed specifically in the testis and (iv) evidence confirming S-LAP enzymatic activity supporting their functional annotation.
To quantity the transcript abundance, 4 genes with known abundance were chosen as standards (http://downloads.yeastgenome.org/).org/
